Main Page   Groups   Namespace List   Class Hierarchy   Alphabetical List   Compound List   File List   Namespace Members   Compound Members   File Members   Concepts
itk::WatershedImageFilter

itk::WatershedImageFilter< TInputImage > Class Template Reference
[Watershed-based Segmentation Filters]

#include <itkWatershedImageFilter.h>

Inheritance diagram for itk::WatershedImageFilter< TInputImage >:

Inheritance graph
[legend]
Collaboration diagram for itk::WatershedImageFilter< TInputImage >:

Collaboration graph
[legend]
List of all members.

Detailed Description

template<class TInputImage>
class itk::WatershedImageFilter< TInputImage >

A low-level image analysis algorithm that automatically produces a hierarchy of segmented, labeled images from a scalar-valued image input.

Overview and terminology
This filter implements a non-streaming version of an image segmentation algorithm commonly known as ``watershed segmentation''. Watershed segmentation gets its name from the manner in which the algorithm segments regions into catchment basins. If a function $ f $ is a continuous height function defined over an image domain, then a catchment basin is defined as the set of points whose paths of steepest descent terminate at the same local minimum of $ f $.
The choice of height function (input) depends on the application, and the basic watershed algorithm operates independently of that choice. For intensity-based image data, you might typically use some sort of gradient magnitude calculation as input. (see itk::GradientMagnitudeImageFilter)
The watershed algorithm proceeds in several steps. First, an initial classification of all points into catchment basin regions is done by tracing each point down its path of steepest descent to a local minima. Next, neighboring regions and the boundaries between them are analyzed according to some saliency measure (such as minimum boundary height) to produce a tree of merges among adjacent regions. These merges occur at different maximum saliency values. The collective set of all possible merges up to a specified saliency ``flood level'' is referred to in this documentation as a ``merge tree''. Metaphorically, the flood level is a value that reflects the amount of precipitation that is rained into the catchment basins. As the flood level rises, boundaries between adjacent segments erode and those segments merge. The minimum value of the flood level is zero and the maximum value is the difference between the highest and lowest values in the input image.
Note that once the initial analysis and segmentation is done to produce the merge tree, it is trivial to produce a hierarchy of labeled images in constant time. The complexity of the algorithm is in the computation of the merge tree. Once that tree has been created, the initial segmented image can be relabeled to reflect any maximum saliency value found in the tree by simply identifying a subset of segment merges from the tree.
Implementational details
This filter is a wrapper for several lower level process objects (watershed algorithm components in the namespace ``watershed''). For a more complete picture of the implementation, refer to the documentation of those components. The component classes were designed to operate in either a data-streaming or a non-data-streaming mode. The pipeline constructed in this class' GenerateData() method does not support streaming, but is the common use case for the components.
Description of the input to this filter
The input to this filter is a scalar itk::Image of any dimensionality. This input image is assumed to represent some sort of height function or edge map based on the original image that you want to segment (such as would be produced by itk::GradientMagnitudeImageFilter). This filter does not do any pre-processing on its input other than a thresholding step. The algorithm does not explicitly require that the input be of any particular data type, but floating point or double precision data is recommended.
The recommended pre-processing for scalar image input to this algorithm is to use one of the itk::AnisotropicDiffusionImageFilter subclasses to smooth the original image and then perform some sort of edge calculation based on gradients or curvature.
Description of the output of this filter
This filter will produce an itk::Image of unsigned long integer type and of the same dimensionality as the input image. The unsigned long output image is referred to as the ``labeled image'' in this documentation. Each pixel in the image is assigned an unsigned long integer label that groups it within a connected region.
Some notes on filter parameters
Two parameters control the output of this filter, Threshold and Level. The units of both parameters are percentage points of the maximum height value in the input.
Threshold is used to set the absolute minimum height value used during processing. Raising this threshold percentage effectively decreases the number of local minima in the input, resulting in an initial segmentation with fewer regions. The assumption is that the shallow regions that thresholding removes are of of less interest.
The Level parameter controls the depth of metaphorical flooding of the image. That is, it sets the maximum saliency value of interest in the result. Raising and lowering the Level influences the number of segments in the basic segmentation that are merged to produce the final output. A level of 1.0 is analogous to flooding the image up to a depth that is 100 percent of the maximum value in the image. A level of 0.0 produces the basic segmentation, which will typically be very oversegmented. Level values of interest are typically low (i.e. less than about 0.40 or 40% ), since higher values quickly start to undersegment the image.
The Level parameter can be used to create a hierarchy of output images in constant time once an initial segmentation is done. A typical scenario might go like this: For the initial execution of the filter, set the Level to the maximum saliency value that you anticipate might be of interest. Once the initial Update() of this process object has finished, the Level can be manipulated anywhere below the initial setting without triggering a full update of the segmentation mini-pipeline. All that is now be required to produce the new output is a simple relabeling of the output image.
Threshold and Level parameters are controlled through the class' Get/SetThreshold() and Get/SetLevel() methods.
Notes on streaming the watershed segmentation code
Coming soon... 12/06/01

Definition at line 152 of file itkWatershedImageFilter.h.

Public Types

typedef SmartPointer< const
Self > 		ConstPointer
typedef DataObject::Pointer DataObjectPointer
typedef std::vector< DataObjectPointer > DataObjectPointerArray
typedef DataObjectPointerArray::size_type DataObjectPointerArraySizeType
typedef InputImageType::IndexType IndexType
typedef InputImageType::ConstPointer InputImageConstPointer
typedef InputImageType::PixelType InputImagePixelType
typedef InputImageType::Pointer InputImagePointer
typedef InputImageType::RegionType InputImageRegionType
typedef TInputImage InputImageType
typedef Superclass::OutputImagePixelType OutputImagePixelType
typedef OutputImageType::Pointer OutputImagePointer
typedef Superclass::OutputImageRegionType OutputImageRegionType
typedef Image< unsigned long,
itkGetStaticConstMacro(ImageDimension)> 		OutputImageType
typedef SmartPointer< Self > Pointer
typedef InputImageType::RegionType RegionType
typedef InputImageType::PixelType ScalarType
typedef WatershedImageFilter Self
typedef InputImageType::SizeType SizeType
typedef ImageToImageFilter<
InputImageType, OutputImageType > 		Superclass

Public Member Functions

virtual void AbortGenerateDataOff ()
virtual void AbortGenerateDataOn ()
virtual LightObject::Pointer CreateAnother () const
virtual void DebugOff () const
virtual void DebugOn () const
virtual void Delete ()
void EnlargeOutputRequestedRegion (DataObject *data)
void GenerateData ()
virtual const bool & GetAbortGenerateData ()
Command * GetCommand (unsigned long tag)
bool GetDebug () const
DataObjectPointerArray & GetInputs ()
const MetaDataDictionary & GetMetaDataDictionary (void) const
MetaDataDictionary & GetMetaDataDictionary (void)
virtual unsigned long GetMTime () const
MultiThreader * GetMultiThreader ()
virtual const char * GetNameOfClass () const
DataObjectPointerArraySizeType GetNumberOfInputs () const
virtual DataObjectPointerArraySizeType GetNumberOfValidRequiredInputs () const
virtual const float & GetProgress ()
virtual int GetReferenceCount () const
watershed::SegmentTreeGenerator<
ScalarType >::SegmentTreeType * 		GetSegmentTree ()
virtual void GraftNthOutput (unsigned int idx, DataObject *output)
virtual void GraftOutput (DataObject *output)
bool HasObserver (const EventObject &event) const
void InvokeEvent (const EventObject &) const
void InvokeEvent (const EventObject &)
 itkStaticConstMacro (ImageDimension, unsigned int, TInputImage::ImageDimension)
virtual DataObjectPointer MakeOutput (unsigned int idx)
virtual void Modified () const
void Print (std::ostream &os, Indent indent=0) const
virtual void PropagateRequestedRegion (DataObject *output)
virtual void Register () const
void RemoveAllObservers ()
void RemoveObserver (unsigned long tag)
virtual void ResetPipeline ()
virtual void SetAbortGenerateData (bool _arg)
void SetDebug (bool debugFlag) const
virtual void SetInput (unsigned int i, const TInputImage *image)
void SetInput (const InputImageType *input)
void SetMetaDataDictionary (const MetaDataDictionary &rhs)
virtual void SetProgress (float _arg)
virtual void SetReferenceCount (int)
virtual void UnRegister () const
virtual void Update ()
virtual void UpdateLargestPossibleRegion ()
virtual void UpdateOutputData (DataObject *output)
virtual void UpdateOutputInformation ()
void UpdateProgress (float amount)
unsigned long AddObserver (const EventObject &event, Command *) const
unsigned long AddObserver (const EventObject &event, Command *)
watershed::Segmenter< InputImageType
>::OutputImageType * 		GetBasicSegmentation ()
const InputImageType * GetInput (unsigned int idx)
const InputImageType * GetInput (void)
virtual double GetLevel ()
void SetLevel (double)
DataObjectPointerArraySizeType GetNumberOfOutputs () const
DataObjectPointerArray & GetOutputs ()
virtual const int & GetNumberOfThreads ()
virtual void SetNumberOfThreads (int _arg)
OutputImageType * GetOutput (unsigned int idx)
OutputImageType * GetOutput (void)
virtual const bool & GetReleaseDataBeforeUpdateFlag ()
virtual void ReleaseDataBeforeUpdateFlagOff ()
virtual void ReleaseDataBeforeUpdateFlagOn ()
virtual void SetReleaseDataBeforeUpdateFlag (bool _arg)
virtual bool GetReleaseDataFlag () const
void ReleaseDataFlagOff ()
void ReleaseDataFlagOn ()
virtual void SetReleaseDataFlag (bool flag)
virtual double GetThreshold ()
void SetThreshold (double)
 itkStaticConstMacro (OutputImageDimension, unsigned int, TOutputImage::ImageDimension)
 itkStaticConstMacro (InputImageDimension, unsigned int, TInputImage::ImageDimension)
virtual void PopBackInput ()
virtual void PopFrontInput ()
virtual void PushBackInput (const InputImageType *image)
virtual void PushFrontInput (const InputImageType *image)

Static Public Member Functions

static void BreakOnError ()
static Pointer New ()
static bool GetGlobalWarningDisplay ()
static void GlobalWarningDisplayOff ()
static void GlobalWarningDisplayOn ()
static void SetGlobalWarningDisplay (bool flag)

Protected Types

typedef ImageToImageFilterDetail::ImageRegionCopier<
itkGetStaticConstMacro(OutputImageDimension),
itkGetStaticConstMacro(InputImageDimension)> 		InputToOutputRegionCopierType
typedef ImageToImageFilterDetail::ImageRegionCopier<
itkGetStaticConstMacro(InputImageDimension),
itkGetStaticConstMacro(OutputImageDimension)> 		OutputToInputRegionCopierType
typedef int InternalReferenceCountType

Protected Member Functions

virtual void AfterThreadedGenerateData ()
virtual void AllocateOutputs ()
virtual void BeforeThreadedGenerateData ()
virtual void CacheInputReleaseDataFlags ()
virtual void CallCopyInputRegionToOutputRegion (OutputImageRegionType &destRegion, const InputImageRegionType &srcRegion)
virtual void CallCopyOutputRegionToInputRegion (InputImageRegionType &destRegion, const OutputImageRegionType &srcRegion)
virtual void GenerateInputRequestedRegion ()
virtual void GenerateOutputInformation ()
virtual void GenerateOutputRequestedRegion (DataObject *output)
void operator= (const Self &)
virtual void PrepareOutputs ()
bool PrintObservers (std::ostream &os, Indent indent) const
void PrintSelf (std::ostream &os, Indent indent) const
virtual void PropagateResetPipeline ()
virtual void ReleaseInputs ()
virtual void RestoreInputReleaseDataFlags ()
void SetNumberOfInputs (unsigned int num)
void SetNumberOfOutputs (unsigned int num)
virtual int SplitRequestedRegion (int i, int num, OutputImageRegionType &splitRegion)
virtual void ThreadedGenerateData (const OutputImageRegionType &outputRegionForThread, int threadId) ITK_NO_RETURN
 WatershedImageFilter (const Self &)
 WatershedImageFilter ()
virtual ~WatershedImageFilter ()
virtual void AddInput (DataObject *input)
virtual const unsigned int & GetNumberOfRequiredInputs ()
virtual void RemoveInput (DataObject *input)
virtual void SetNthInput (unsigned int num, DataObject *input)
virtual void SetNumberOfRequiredInputs (unsigned int _arg)
virtual void AddOutput (DataObject *output)
virtual const unsigned int & GetNumberOfRequiredOutputs ()
virtual void RemoveOutput (DataObject *output)
virtual void SetNthOutput (unsigned int num, DataObject *output)
virtual void SetNumberOfRequiredOutputs (unsigned int _arg)
const DataObject * GetInput (unsigned int idx) const
const DataObject * GetOutput (unsigned int idx) const
virtual void PrintHeader (std::ostream &os, Indent indent) const
virtual void PrintTrailer (std::ostream &os, Indent indent) const
void PushBackInput (const DataObject *input)
void PushFrontInput (const DataObject *input)

Static Protected Member Functions

static ITK_THREAD_RETURN_TYPE ThreaderCallback (void *arg)

Protected Attributes

TimeStamp m_OutputInformationMTime
InternalReferenceCountType m_ReferenceCount
SimpleFastMutexLock m_ReferenceCountLock
bool m_Updating

Member Typedef Documentation

template<class TInputImage, class TOutputImage>
typedef SmartPointer<const Self> itk::ImageToImageFilter< TInputImage, TOutputImage >::ConstPointer [inherited]

Reimplemented from itk::ImageSource< TOutputImage >.

Reimplemented in itk::AnisotropicFourthOrderLevelSetImageFilter< TInputImage, TOutputImage >, itk::AntiAliasBinaryImageFilter< TInputImage, TOutputImage >, itk::BayesianClassifierImageFilter< TInputVectorImage, TLabelsType, TPosteriorsPrecisionType, TPriorsPrecisionType >, itk::BayesianClassifierInitializationImageFilter< TInputImage, TProbabilityPrecisionType >, itk::BinaryMinMaxCurvatureFlowImageFilter< TInputImage, TOutputImage >, itk::BinaryPruningImageFilter< TInputImage, TOutputImage >, itk::BinaryThinningImageFilter< TInputImage, TOutputImage >, itk::CannySegmentationLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >, itk::CollidingFrontsImageFilter< TInputImage, TOutputImage >, itk::CurvatureFlowImageFilter< TInputImage, TOutputImage >, itk::CurvesLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >, itk::DemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >, itk::ExtensionVelocitiesImageFilter< TLevelSet, TAuxValue, VAuxDimension >, itk::FastChamferDistanceImageFilter< TInputImage, TOutputImage >, itk::FastMarchingExtensionImageFilter< TLevelSet, TAuxValue, VAuxDimension, TSpeedImage >, itk::FastMarchingImageFilter< TLevelSet, TSpeedImage >, itk::FastMarchingUpwindGradientImageFilter< TLevelSet, TSpeedImage >, itk::fem::FEMRegistrationFilter< TMovingImage, TFixedImage >, itk::FFTComplexConjugateToRealImageFilter< TPixel, VDimension >, itk::FFTRealToComplexConjugateImageFilter< TPixel, VDimension >, itk::FFTWComplexConjugateToRealImageFilter< TPixel, VDimension >, itk::FFTWRealToComplexConjugateImageFilter< TPixel, VDimension >, itk::GeodesicActiveContourLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >, itk::GeodesicActiveContourShapePriorLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >, itk::GradientVectorFlowImageFilter< TInputImage, TOutputImage >, itk::HistogramMatchingImageFilter< TInputImage, TOutputImage, THistogramMeasurement >, itk::ImagePCAShapeModelEstimator< TInputImage, TOutputImage >, itk::ImageShapeModelEstimatorBase< TInputImage, TOutputImage >, itk::IsoContourDistanceImageFilter< TInputImage, TOutputImage >, itk::IsolatedWatershedImageFilter< TInputImage, TOutputImage >, itk::IsotropicFourthOrderLevelSetImageFilter< TInputImage, TOutputImage >, itk::KLMRegionGrowImageFilter< TInputImage, TOutputImage >, itk::LabelVotingImageFilter< TInputImage, TOutputImage >, itk::LaplacianSegmentationLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >, itk::LevelSetMotionRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >, itk::MinMaxCurvatureFlowImageFilter< TInputImage, TOutputImage >, itk::MRFImageFilter< TInputImage, TClassifiedImage >, itk::MRIBiasFieldCorrectionFilter< TInputImage, TOutputImage, TMaskImage >, itk::MultiResolutionPDEDeformableRegistration< TFixedImage, TMovingImage, TDeformationField, TRealType >, itk::MultiResolutionPyramidImageFilter< TInputImage, TOutputImage >, itk::NarrowBandCurvesLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >, itk::NarrowBandLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType, TOutputImage >, itk::NarrowBandThresholdSegmentationLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >, itk::OtsuMultipleThresholdsImageFilter< TInputImage, TOutputImage >, itk::OtsuThresholdImageFilter< TInputImage, TOutputImage >, itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >, itk::RecursiveMultiResolutionPyramidImageFilter< TInputImage, TOutputImage >, itk::RegionGrowImageFilter< TInputImage, TOutputImage >, itk::ReinitializeLevelSetImageFilter< TLevelSet >, itk::RGBGibbsPriorFilter< TInputImage, TClassifiedImage >, itk::ScalarImageKmeansImageFilter< TInputImage >, itk::SegmentationLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >, itk::ShapeDetectionLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >, itk::ShapePriorSegmentationLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >, itk::STAPLEImageFilter< TInputImage, TOutputImage >, itk::SymmetricForcesDemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >, itk::ThresholdMaximumConnectedComponentsImageFilter< TInputImage, TOutputImage >, itk::ThresholdSegmentationLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >, itk::UnsharpMaskLevelSetImageFilter< TInputImage, TOutputImage >, itk::VectorThresholdSegmentationLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType >, itk::VnlFFTComplexConjugateToRealImageFilter< TPixel, Dimension >, itk::VnlFFTRealToComplexConjugateImageFilter< TPixel, Dimension >, itk::VoronoiPartitioningImageFilter< TInputImage, TOutputImage >, itk::VoronoiSegmentationImageFilter< TInputImage, TOutputImage, TBinaryPriorImage >, itk::VoronoiSegmentationImageFilterBase< TInputImage, TOutputImage, TBinaryPriorImage >, itk::VoronoiSegmentationRGBImageFilter< TInputImage, TOutputImage >, itk::AbsImageFilter< TInputImage, TOutputImage >, itk::AbsoluteValueDifferenceImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::AccumulateImageFilter< TInputImage, TOutputImage >, itk::AcosImageFilter< TInputImage, TOutputImage >, itk::AdaptImageFilter< TInputImage, TOutputImage, TAccessor >, itk::AdaptiveHistogramEqualizationImageFilter< TImageType >, itk::AddImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::AndImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::ApproximateSignedDistanceMapImageFilter< TInputImage, TOutputImage >, itk::AsinImageFilter< TInputImage, TOutputImage >, itk::Atan2ImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::AtanImageFilter< TInputImage, TOutputImage >, itk::BilateralImageFilter< TInputImage, TOutputImage >, itk::BinaryDilateImageFilter< TInputImage, TOutputImage, TKernel >, itk::BinaryErodeImageFilter< TInputImage, TOutputImage, TKernel >, itk::BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage, TFunction >, itk::BinaryMagnitudeImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::BinaryMedianImageFilter< TInputImage, TOutputImage >, itk::BinaryMorphologyImageFilter< TInputImage, TOutputImage, TKernel >, itk::BinaryProjectionImageFilter< TInputImage, TOutputImage >, itk::BinaryThresholdImageFilter< TInputImage, TOutputImage >, itk::BinaryThresholdProjectionImageFilter< TInputImage, TOutputImage >, itk::BinomialBlurImageFilter< TInputImage, TOutputImage >, itk::BlackTopHatImageFilter< TInputImage, TOutputImage, TKernel >, itk::BloxBoundaryPointImageToBloxBoundaryProfileImageFilter< TSourceImage >, itk::BloxBoundaryPointToCoreAtomImageFilter< dim >, itk::BloxBoundaryProfileImageToBloxCoreAtomImageFilter< TInputImage, TOutputImage, TSourceImage >, itk::BoundedReciprocalImageFilter< TInputImage, TOutputImage >, itk::BSplineCenteredL2ResampleImageFilterBase< TInputImage, TOutputImage >, itk::BSplineCenteredResampleImageFilterBase< TInputImage, TOutputImage >, itk::BSplineDecompositionImageFilter< TInputImage, TOutputImage >, itk::BSplineL2ResampleImageFilterBase< TInputImage, TOutputImage >, itk::BSplineResampleImageFilterBase< TInputImage, TOutputImage >, itk::CannyEdgeDetectionImageFilter< TInputImage, TOutputImage >, itk::CastImageFilter< TInputImage, TOutputImage >, itk::ChangeInformationImageFilter< TInputImage >, itk::ChangeLabelImageFilter< TInputImage, TOutputImage >, itk::CheckerBoardImageFilter< TImage >, itk::ClosingByReconstructionImageFilter< TInputImage, TOutputImage, TKernel >, itk::ComplexToImaginaryImageFilter< TInputImage, TOutputImage >, itk::ComplexToModulusImageFilter< TInputImage, TOutputImage >, itk::ComplexToPhaseImageFilter< TInputImage, TOutputImage >, itk::ComplexToRealImageFilter< TInputImage, TOutputImage >, itk::Compose2DCovariantVectorImageFilter< TInputImage, TOutputImage >, itk::Compose2DVectorImageFilter< TInputImage, TOutputImage >, itk::Compose3DCovariantVectorImageFilter< TInputImage, TOutputImage >, itk::Compose3DVectorImageFilter< TInputImage, TOutputImage >, itk::ComposeRGBImageFilter< TInputImage, TOutputImage >, itk::ConfidenceConnectedImageFilter< TInputImage, TOutputImage >, itk::ConnectedComponentFunctorImageFilter< TInputImage, TOutputImage, TFunctor, TMaskImage >, itk::ConnectedComponentImageFilter< TInputImage, TOutputImage, TMaskImage >, itk::ConnectedThresholdImageFilter< TInputImage, TOutputImage >, itk::ConstantPadImageFilter< TInputImage, TOutputImage >, itk::ConstrainedValueAdditionImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::ConstrainedValueDifferenceImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::ContourDirectedMeanDistanceImageFilter< TInputImage1, TInputImage2 >, itk::ContourMeanDistanceImageFilter< TInputImage1, TInputImage2 >, itk::CosImageFilter< TInputImage, TOutputImage >, itk::CropImageFilter< TInputImage, TOutputImage >, itk::CurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::DanielssonDistanceMapImageFilter< TInputImage, TOutputImage >, itk::DeformationFieldJacobianDeterminantFilter< TInputImage, TRealType, TOutputImage >, itk::DerivativeImageFilter< TInputImage, TOutputImage >, itk::DifferenceOfGaussiansGradientImageFilter< TInputImage, TDataType >, itk::DiffusionTensor3DReconstructionImageFilter< TReferenceImagePixelType, TGradientImagePixelType, TTensorPixelType >, itk::DilateObjectMorphologyImageFilter< TInputImage, TOutputImage, TKernel >, itk::DirectedHausdorffDistanceImageFilter< TInputImage1, TInputImage2 >, itk::DiscreteGaussianImageFilter< TInputImage, TOutputImage >, itk::DisplacementFieldJacobianDeterminantFilter< TInputImage, TRealType, TOutputImage >, itk::DivideImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::DoubleThresholdImageFilter< TInputImage, TOutputImage >, itk::EdgePotentialImageFilter< TInputImage, TOutputImage >, itk::EigenAnalysis2DImageFilter< TInputImage, TEigenValueImage, TEigenVectorImage >, itk::ErodeObjectMorphologyImageFilter< TInputImage, TOutputImage, TKernel >, itk::ExpandImageFilter< TInputImage, TOutputImage >, itk::ExpImageFilter< TInputImage, TOutputImage >, itk::ExpNegativeImageFilter< TInputImage, TOutputImage >, itk::ExtractImageFilter< TInputImage, TOutputImage >, itk::ExtractOrthogonalSwath2DImageFilter< TImage >, itk::FastIncrementalBinaryDilateImageFilter< TInputImage, TOutputImage, TKernel >, itk::FlipImageFilter< TImage >, itk::GetAverageSliceImageFilter< TInputImage, TOutputImage >, itk::GradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::GradientImageFilter< TInputImage, TOperatorValueType, TOutputValueType >, itk::GradientImageToBloxBoundaryPointImageFilter< TInputImage >, itk::GradientMagnitudeImageFilter< TInputImage, TOutputImage >, itk::GradientMagnitudeRecursiveGaussianImageFilter< TInputImage, TOutputImage >, itk::GradientRecursiveGaussianImageFilter< TInputImage, TOutputImage >, itk::GradientToMagnitudeImageFilter< TInputImage, TOutputImage >, itk::GrayscaleConnectedClosingImageFilter< TInputImage, TOutputImage >, itk::GrayscaleConnectedOpeningImageFilter< TInputImage, TOutputImage >, itk::GrayscaleDilateImageFilter< TInputImage, TOutputImage, TKernel >, itk::GrayscaleErodeImageFilter< TInputImage, TOutputImage, TKernel >, itk::GrayscaleFillholeImageFilter< TInputImage, TOutputImage >, itk::GrayscaleFunctionDilateImageFilter< TInputImage, TOutputImage, TKernel >, itk::GrayscaleFunctionErodeImageFilter< TInputImage, TOutputImage, TKernel >, itk::GrayscaleGeodesicDilateImageFilter< TInputImage, TOutputImage >, itk::GrayscaleGeodesicErodeImageFilter< TInputImage, TOutputImage >, itk::GrayscaleGrindPeakImageFilter< TInputImage, TOutputImage >, itk::GrayscaleMorphologicalClosingImageFilter< TInputImage, TOutputImage, TKernel >, itk::GrayscaleMorphologicalOpeningImageFilter< TInputImage, TOutputImage, TKernel >, itk::HausdorffDistanceImageFilter< TInputImage1, TInputImage2 >, itk::HConcaveImageFilter< TInputImage, TOutputImage >, itk::HConvexImageFilter< TInputImage, TOutputImage >, itk::Hessian3DToVesselnessMeasureImageFilter< TPixel >, itk::HessianRecursiveGaussianImageFilter< TInputImage, TOutputImage >, itk::HMaximaImageFilter< TInputImage, TOutputImage >, itk::HMinimaImageFilter< TInputImage, TOutputImage >, itk::HoughTransform2DCirclesImageFilter< TInputPixelType, TOutputPixelType >, itk::HoughTransform2DLinesImageFilter< TInputPixelType, TOutputPixelType >, itk::ImageToVectorImageFilter< TInputImage >, itk::ImplicitManifoldNormalVectorFilter< TInputImage, TSparseOutputImage >, itk::IntensityWindowingImageFilter< TInputImage, TOutputImage >, itk::InterpolateImageFilter< TInputImage, TOutputImage >, itk::InterpolateImagePointsFilter< TInputImage, TOutputImage, TCoordType, InterpolatorType >, itk::InverseDeformationFieldImageFilter< TInputImage, TOutputImage >, itk::InvertIntensityImageFilter< TInputImage, TOutputImage >, itk::IsolatedConnectedImageFilter< TInputImage, TOutputImage >, itk::IterativeInverseDeformationFieldImageFilter< TInputImage, TOutputImage >, itk::JoinImageFilter< TInputImage1, TInputImage2 >, itk::JoinSeriesImageFilter< TInputImage, TOutputImage >, itk::LabelStatisticsImageFilter< TInputImage, TLabelImage >, itk::LaplacianImageFilter< TInputImage, TOutputImage >, itk::LaplacianRecursiveGaussianImageFilter< TInputImage, TOutputImage >, itk::LaplacianSharpeningImageFilter< TInputImage, TOutputImage >, itk::Log10ImageFilter< TInputImage, TOutputImage >, itk::LogImageFilter< TInputImage, TOutputImage >, itk::MaskImageFilter< TInputImage, TMaskImage, TOutputImage >, itk::MaskNegatedImageFilter< TInputImage, TMaskImage, TOutputImage >, itk::MaskNeighborhoodOperatorImageFilter< TInputImage, TMaskImage, TOutputImage, TOperatorValueType >, itk::MatrixIndexSelectionImageFilter< TInputImage, TOutputImage >, itk::MaximumImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::MaximumProjectionImageFilter< TInputImage, TOutputImage >, itk::MeanImageFilter< TInputImage, TOutputImage >, itk::MeanProjectionImageFilter< TInputImage, TOutputImage, TAccumulate >, itk::MedianImageFilter< TInputImage, TOutputImage >, itk::MedianProjectionImageFilter< TInputImage, TOutputImage >, itk::MinimumImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::MinimumMaximumImageFilter< TInputImage >, itk::MinimumProjectionImageFilter< TInputImage, TOutputImage >, itk::MirrorPadImageFilter< TInputImage, TOutputImage >, itk::ModulusImageFilter< TInputImage, TOutputImage >, itk::MorphologicalGradientImageFilter< TInputImage, TOutputImage, TKernel >, itk::MorphologyImageFilter< TInputImage, TOutputImage, TKernel >, itk::MultiplyImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::NarrowBandImageFilterBase< TInputImage, TOutputImage >, itk::NaryAddImageFilter< TInputImage, TOutputImage >, itk::NaryFunctorImageFilter< TInputImage, TOutputImage, TFunction >, itk::NaryMaximumImageFilter< TInputImage, TOutputImage >, itk::NeighborhoodConnectedImageFilter< TInputImage, TOutputImage >, itk::NeighborhoodOperatorImageFilter< TInputImage, TOutputImage, TOperatorValueType >, itk::NoiseImageFilter< TInputImage, TOutputImage >, itk::NonThreadedShrinkImageFilter< TInputImage, TOutputImage >, itk::NormalizedCorrelationImageFilter< TInputImage, TMaskImage, TOutputImage, TOperatorValueType >, itk::NormalizeImageFilter< TInputImage, TOutputImage >, itk::NotImageFilter< TInputImage, TOutputImage >, itk::ObjectMorphologyImageFilter< TInputImage, TOutputImage, TKernel >, itk::OpeningByReconstructionImageFilter< TInputImage, TOutputImage, TKernel >, itk::OrientImageFilter< TInputImage, TOutputImage >, itk::OrImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::PadImageFilter< TInputImage, TOutputImage >, itk::ParallelSparseFieldLevelSetImageFilter< TInputImage, TOutputImage >, itk::PasteImageFilter< TInputImage, TSourceImage, TOutputImage >, itk::PermuteAxesImageFilter< TImage >, itk::PolylineMask2DImageFilter< TInputImage, TPolyline, TOutputImage >, itk::PolylineMaskImageFilter< TInputImage, TPolyline, TVector, TOutputImage >, itk::ProjectionImageFilter< TInputImage, TOutputImage, TAccumulator >, itk::ReconstructionByDilationImageFilter< TInputImage, TOutputImage >, itk::ReconstructionByErosionImageFilter< TInputImage, TOutputImage >, itk::ReconstructionImageFilter< TInputImage, TOutputImage, TCompare >, itk::RecursiveGaussianImageFilter< TInputImage, TOutputImage >, itk::RecursiveSeparableImageFilter< TInputImage, TOutputImage >, itk::ReflectImageFilter< TInputImage, TOutputImage >, itk::RegionOfInterestImageFilter< TInputImage, TOutputImage >, itk::RelabelComponentImageFilter< TInputImage, TOutputImage >, itk::ResampleImageFilter< TInputImage, TOutputImage, TInterpolatorPrecisionType >, itk::RescaleIntensityImageFilter< TInputImage, TOutputImage >, itk::RGBToLuminanceImageFilter< TInputImage, TOutputImage >, itk::ScalarConnectedComponentImageFilter< TInputImage, TOutputImage, TMaskImage >, itk::ScalarToArrayCastImageFilter< TInputImage, TOutputImage >, itk::ShiftScaleImageFilter< TInputImage, TOutputImage >, itk::ShiftScaleInPlaceImageFilter< TInputImage >, itk::ShrinkImageFilter< TInputImage, TOutputImage >, itk::SigmoidImageFilter< TInputImage, TOutputImage >, itk::SignedDanielssonDistanceMapImageFilter< TInputImage, TOutputImage >, itk::SignedMaurerDistanceMapImageFilter< TInputImage, TOutputImage >, itk::SimilarityIndexImageFilter< TInputImage1, TInputImage2 >, itk::SimpleContourExtractorImageFilter< TInputImage, TOutputImage >, itk::SinImageFilter< TInputImage, TOutputImage >, itk::SmoothingRecursiveGaussianImageFilter< TInputImage, TOutputImage >, itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >, itk::SparseFieldFourthOrderLevelSetImageFilter< TInputImage, TOutputImage >, itk::SparseFieldLevelSetImageFilter< TInputImage, TOutputImage >, itk::SpatialFunctionImageEvaluatorFilter< TSpatialFunction, TInputImage, TOutputImage >, itk::SqrtImageFilter< TInputImage, TOutputImage >, itk::SquaredDifferenceImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::SquareImageFilter< TInputImage, TOutputImage >, itk::StandardDeviationProjectionImageFilter< TInputImage, TOutputImage, TAccumulate >, itk::StatisticsImageFilter< TInputImage >, itk::StreamingImageFilter< TInputImage, TOutputImage >, itk::SubtractImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::SumProjectionImageFilter< TInputImage, TOutputImage >, itk::SymmetricEigenAnalysisImageFilter< TInputImage, TOutputImage >, itk::TanImageFilter< TInputImage, TOutputImage >, itk::TensorFractionalAnisotropyImageFilter< TInputImage, TOutputImage >, itk::TensorRelativeAnisotropyImageFilter< TInputImage, TOutputImage >, itk::TernaryAddImageFilter< TInputImage1, TInputImage2, TInputImage3, TOutputImage >, itk::TernaryFunctorImageFilter< TInputImage1, TInputImage2, TInputImage3, TOutputImage, TFunction >, itk::TernaryMagnitudeImageFilter< TInputImage1, TInputImage2, TInputImage3, TOutputImage >, itk::TernaryMagnitudeSquaredImageFilter< TInputImage1, TInputImage2, TInputImage3, TOutputImage >, itk::ThresholdImageFilter< TImage >, itk::ThresholdLabelerImageFilter< TInputImage, TOutputImage >, itk::TileImageFilter< TInputImage, TOutputImage >, itk::TwoOutputExampleImageFilter< TImage >, itk::UnaryFunctorImageFilter< TInputImage, TOutputImage, TFunction >, itk::VectorCastImageFilter< TInputImage, TOutputImage >, itk::VectorConfidenceConnectedImageFilter< TInputImage, TOutputImage >, itk::VectorConnectedComponentImageFilter< TInputImage, TOutputImage, TMaskImage >, itk::VectorCurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::VectorExpandImageFilter< TInputImage, TOutputImage >, itk::VectorGradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::VectorGradientMagnitudeImageFilter< TInputImage, TRealType, TOutputImage >, itk::VectorIndexSelectionCastImageFilter< TInputImage, TOutputImage >, itk::VectorNeighborhoodOperatorImageFilter< TInputImage, TOutputImage >, itk::VectorResampleImageFilter< TInputImage, TOutputImage, TInterpolatorPrecisionType >, itk::VectorRescaleIntensityImageFilter< TInputImage, TOutputImage >, itk::VotingBinaryHoleFillingImageFilter< TInputImage, TOutputImage >, itk::VotingBinaryImageFilter< TInputImage, TOutputImage >, itk::VotingBinaryIterativeHoleFillingImageFilter< TImage >, itk::WarpImageFilter< TInputImage, TOutputImage, TDeformationField >, itk::WarpVectorImageFilter< TInputImage, TOutputImage, TDeformationField >, itk::WeightedAddImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::WhiteTopHatImageFilter< TInputImage, TOutputImage, TKernel >, itk::WrapPadImageFilter< TInputImage, TOutputImage >, itk::XorImageFilter< TInputImage1, TInputImage2, TOutputImage >, itk::ZeroCrossingBasedEdgeDetectionImageFilter< TInputImage, TOutputImage >, itk::ZeroCrossingImageFilter< TInputImage, TOutputImage >, itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >, itk::DifferenceImageFilter< TInputImage, TOutputImage >, itk::FiniteDifferenceImageFilter< TInputImage, TOutputImage >, itk::FiniteDifferenceSparseImageFilter< TInputImageType, TSparseOutputImageType >, itk::ImageAndPathToImageFilter< TInputImage, TInputPath, TOutputImage >, itk::InPlaceImageFilter< TInputImage, TOutputImage >, itk::SimpleFuzzyConnectednessImageFilterBase< TInputImage, TOutputImage >, itk::SimpleFuzzyConnectednessRGBImageFilter< TInputImage, TOutputImage >, itk::SimpleFuzzyConnectednessScalarImageFilter< TInputImage, TOutputImage >, itk::VectorFuzzyConnectednessImageFilter< TInputImage, TOutputImage >, itk::AddConstantToImageFilter< TInputImage, TConstant, TOutputImage >, itk::AnchorCloseImageFilter< TImage, TKernel >, itk::AnchorDilateImageFilter< TImage, TKernel >, itk::AnchorErodeDilateImageFilter< TImage, TKernel, TFunction1, TFunction2 >, itk::AnchorErodeImageFilter< TImage, TKernel >, itk::AnchorOpenCloseImageFilter< TImage, TKernel, LessThan, GreaterThan, LessEqual, GreaterEqual >, itk::AnchorOpenImageFilter< TImage, TKernel >, itk::BasicDilateImageFilter< TInputImage, TOutputImage, TKernel >, itk::BasicErodeImageFilter< TInputImage, TOutputImage, TKernel >, itk::BinaryMorphologicalClosingImageFilter< TInputImage, TOutputImage, TKernel >, itk::BinaryMorphologicalOpeningImageFilter< TInputImage, TOutputImage, TKernel >, itk::BoxImageFilter< TInputImage, TOutputImage >, itk::BoxMeanImageFilter< TInputImage, TOutputImage >, itk::BoxSigmaImageFilter< TInputImage, TOutputImage >, itk::ComposeRGBAImageFilter< TInputImage, TOutputImage >, itk::DiffeomorphicDemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >, itk::DiscreteGaussianDerivativeImageFilter< TInputImage, TOutputImage >, itk::DivideByConstantImageFilter< TInputImage, TConstant, TOutputImage >, itk::ExponentialDeformationFieldImageFilter< TInputImage, TOutputImage >, itk::FastApproximateRankImageFilter< TInputImage, TOutputImage >, itk::FastSymmetricForcesDemonsRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >, itk::FFTComplexToComplexImageFilter< TPixel, NDimension >, itk::GridForwardWarpImageFilter< TDeformationField, TOutputImage >, itk::KappaSigmaThresholdImageFilter< TInputImage, TMaskImage, TOutputImage >, itk::KernelImageFilter< TInputImage, TOutputImage, TKernel >, itk::LabelOverlayImageFilter< TInputImage, TLabelImage, TOutputImage >, itk::LabelToRGBImageFilter< TLabelImage, TOutputImage >, itk::MagnitudeAndPhaseToComplexImageFilter< TInputPixel1, TInputPixel2, TOutputPixel, NDimension >, itk::MaskedMovingHistogramImageFilter< TInputImage, TMaskImage, TOutputImage, TKernel, THistogram >, itk::MaskedRankImageFilter< TInputImage, TMaskImage, TOutputImage, TKernel >, itk::MiniPipelineSeparableImageFilter< TInputImage, TOutputImage, TFilter >, itk::MorphologicalWatershedFromMarkersImageFilter< TInputImage, TLabelImage >, itk::MorphologicalWatershedImageFilter< TInputImage, TOutputImage >, itk::MovingHistogramDilateImageFilter< TInputImage, TOutputImage, TKernel >, itk::MovingHistogramErodeImageFilter< TInputImage, TOutputImage, TKernel >, itk::MovingHistogramImageFilter< TInputImage, TOutputImage, TKernel, THistogram >, itk::MovingHistogramImageFilterBase< TInputImage, TOutputImage, TKernel >, itk::MovingHistogramMorphologicalGradientImageFilter< TInputImage, TOutputImage, TKernel >, itk::MovingHistogramMorphologyImageFilter< TInputImage, TOutputImage, TKernel, THistogram >, itk::MultiplyByConstantImageFilter< TInputImage, TConstant, TOutputImage >, itk::AdaptiveHistogramEqualizationImageFilter< TImageType >, itk::BinaryMorphologyImageFilter< TInputImage, TOutputImage, TKernel >, itk::BlackTopHatImageFilter< TInputImage, TOutputImage, TKernel >, itk::GrayscaleDilateImageFilter< TInputImage, TOutputImage, TKernel >, itk::GrayscaleErodeImageFilter< TInputImage, TOutputImage, TKernel >, itk::GrayscaleMorphologicalClosingImageFilter< TInputImage, TOutputImage, TKernel >, itk::GrayscaleMorphologicalOpeningImageFilter< TInputImage, TOutputImage, TKernel >, itk::MeanImageFilter< TInputImage, TOutputImage >, itk::MedianImageFilter< TInputImage, TOutputImage >, itk::MorphologicalGradientImageFilter< TInputImage, TOutputImage, TKernel >, itk::MorphologyImageFilter< TInputImage, TOutputImage, TKernel >, itk::NoiseImageFilter< TInputImage, TOutputImage >, itk::ResampleImageFilter< TInputImage, TOutputImage, TInterpolatorPrecisionType >, itk::SimpleContourExtractorImageFilter< TInputImage, TOutputImage >, itk::WhiteTopHatImageFilter< TInputImage, TOutputImage, TKernel >, itk::RankImageFilter< TInputImage, TOutputImage, TKernel >, itk::RealAndImaginaryToComplexImageFilter< TInputPixel1, TInputPixel2, TOutputPixel, NDimension >, itk::RegionalMaximaImageFilter< TInputImage, TOutputImage >, itk::RegionalMinimaImageFilter< TInputImage, TOutputImage >, itk::SliceBySliceImageFilter< TInputImage, TOutputImage, TInputFilter, TOutputFilter, TInternalInputImage, TInternalOutputImage >, itk::SubtractConstantFromImageFilter< TInputImage, TConstant, TOutputImage >, itk::ValuedRegionalExtremaImageFilter< TInputImage, TOutputImage, TFunction1, TFunction2 >, itk::ValuedRegionalMaximaImageFilter< TInputImage, TOutputImage >, itk::ValuedRegionalMinimaImageFilter< TInputImage, TOutputImage >, itk::VanHerkGilWermanDilateImageFilter< TImage, TKernel >, itk::VanHerkGilWermanErodeDilateImageFilter< TImage, TKernel, TFunction1 >, itk::VanHerkGilWermanErodeImageFilter< TImage, TKernel >, itk::FFTComplexConjugateToRealImageFilter< TPixel, Dimension >, itk::FFTRealToComplexConjugateImageFilter< TPixel, Dimension >, itk::NarrowBandLevelSetImageFilter< TInputImage, TFeatureImage, TOutputPixelType, itk::Image< TOutputPixelType,::itk::GetImageDimension< TInputImage >::ImageDimension > >, itk::VoronoiSegmentationImageFilterBase< TInputImage, TOutputImage >, itk::BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage, itk::Function::Sub2< TInputImage1::PixelType, TInputImage2::PixelType, TOutputImage::PixelType > >, itk::BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage, itk::Functor::Atan2< TInputImage1::PixelType, TInputImage2::PixelType, TOutputImage::PixelType > >, itk::BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage, itk::Functor::AND< TInputImage1::PixelType, TInputImage2::PixelType, TOutputImage::PixelType > >, itk::BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage, itk::Function::Maximum< TInputImage1::PixelType, TInputImage2::PixelType, TOutputImage::PixelType > >, itk::BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage, itk::Functor::ConstrainedValueDifference< TInputImage1::PixelType, TInputImage2::PixelType, TOutputImage::PixelType > >, itk::BinaryFunctorImageFilter< TInputImage, TLabelImage, TOutputImage, itk::Functor::LabelOverlayFunctor< TInputImage::PixelType, TLabelImage::PixelType, TOutputImage::PixelType > >, itk::BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage, itk::Functor::SquaredDifference2< TInputImage1::PixelType, TInputImage2::PixelType, TOutputImage::PixelType > >, itk::BinaryFunctorImageFilter< TInputImage, TInputImage, TOutputImage, itk::Function::Compose2DCovariantVector< TInputImage::PixelType > >